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This is a little tricky. I would say reserve. It would help to know what programming language and class this is for because a lot of times when you create an array variable the memory is put onto the stack and you as the programmer do not reserve memory space. Now on the other hand, if you are programming in C and you want to create an array variable and put it on the heap then you would reserve memory space on the heap.
Answer:
The code requests for the scores of three students for three courses offered by each student.
It calculates and print the average score for each student
Explanation:
The code written in Python programming language uses a while to get student 1-3 and a for loop to get scores for course 1-3
See attached code and output
Answer: Explanation:
Salting alters the hash of a password so that it does not physically match the hash of another password. A salt and password are concatenated and processed with a cryptographic hash function. Salt prevents use of rainbow and hash tables to attacking and cracking passwords.
For example, a user has the password, "password000" and is put through a SHA1 hash. In the password database, all of the users with the password "password000" will have the exact same hash, because of the nature of hashing functions. So, if an attacker breaches the database and brute force the password of the user mentioned above, he could look for all the hashes that match the original user's and would know their passwords are also "password000".
By applying a salt, the password hashes would no longer be identical to one another, even though the actual password is still the same. This requires the attacker to go in and attempt to brute force the second password (which has a different salt), even though it may be the same as the first.
In conclusion, it prevents an attacker from uncovering one password and subsequently uncovering multiple others.
